1240305053 has 8 divisors (see below), whose sum is σ = 1342046496. Its totient is φ = 1139468400.

The previous prime is 1240305049. The next prime is 1240305103. The reversal of 1240305053 is 3505030421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240305053 - 2² = 1240305049 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240305653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223343 + ... + 228828.

It is an arithmetic number, because the mean of its divisors is an integer number (167755812).

Almost surely, 2^1240305053 is an apocalyptic number.

1240305053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1240305053 is a deficient number, since it is larger than the sum of its proper divisors (101741443).

1240305053 is a wasteful number, since it uses less digits than its factorization.

1240305053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452395.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1240305053 is about 35217.9649184901. The cubic root of 1240305053 is about 1074.4251631597.

Adding to 1240305053 its reverse (3505030421), we get a palindrome (4745335474).

The spelling of 1240305053 in words is "one billion, two hundred forty million, three hundred five thousand, fifty-three".